At the end of the Ming Dynasty and the beginning of the Qing Dynasty, Wu Sangui sent the Iron Armored Army to exterminate the remaining parties of the Southern Ming Dynasty. Among them was a small border town in Yunnan. The soldiers and civilians in the city rose up in resistance and refused to surrender until they ran out of ammunition and food. And a death row prisoner who was sent to the frontier fortress by the imperial court came to this "purgatory on earth" by accident...
Intent: Just traditional martial arts
Damn, it's very well written!